You are experienced RVrs so perfectly capable of doing your own pre inspection. That said, have a WRITTEN list of items to check so you don't forget something during the process. We actually had a Dynasty IV that I had negotiated on buying when we went to Az. Two hours later and three pages of things I found wrong and we nixed the deal. He still made out as my wife spotted the Exec on his lot and as they say, "The rest is history"....Dennis
PS. If it's a diesel all the driveline components are computer monitored. A Cummins/Allison/Cat dealer can give you all the info on their servicing by plugging in their computers. Not expensive...D
PPS. Don't forget to check the tire date codes...D